Dump-car.



C. H. CLARK.

DUMP CAR.

APPLICATION FILED NOV. 14 I912- Patented May 9, 1916.

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DUMP CAR.

APPLICATION FILED NOV. l4. I9l2.

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C. H. CLARK.

DUMP CAR.

APPLICATION FILED NOV-14. 3912. 1, 182,642. I Patented May 9, 1916.

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DUMP CAR.

APPLICATION mzo NOV. l4,19|2.

1, 182,642. Patented May 9, 1916.

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CHARLES H. CLARK, OF GRAFTON, PENNSYLVANIA, ASSIGNOR- TO CLARK GAR COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF NEW JERSEY.

DUMP-CAR.

Specification of Letters Patent.

PatentedMay 9, 1916.

Application filed November 14, 1912. Serial No. 731,804.

To all whom it may concern:

Be it known that 1, CHARLES H. CLARK, a resident of Grafton in the county of Allegheny and State of lennsylvania, have invented certain new and useful Improvements in Dump-Cars, of which the following is a specification.

he ob ect of this invention is to provide a novel and efficient door arrangement and door operating mechanism for dump cars.

The invention herein is predicated on doors of a type which permit of a relatively low and relatively large discharge opening, the novel arrangement of doors and their mode of operation causing them to open and close without interfering with the track or with parts of the car having fixed position, the opening and closing operations being effected with minimum efi'ort on the part of the operator. With the present invention the car sides may be dis osed vertically with no inward offsets or s opes in their lower portions which, together with the absence of center sills, permits of a discharge opening of maximum transverse dimension.

A further feature of the invention is the simple and efiicient arrangement of door operating means extending to an end of the car where it is readily accessible, with adjusting means to take up lost motion due to wear, etc.

Inthe accompanying drawings, Figure 1 is a side elevation of a ortion of a dump car constructed in accordance with the invention. Fig. 2 is a sectional lan taken on lines 22 of Figs. 1 and 3. 1g. 3 is a vertical cross section on the broken line 3-3 of Fig. 2. Fig. 4 is a detail of the door mounting and door operating mechanism. Fig. 5 is an end elevation of the car.

Referring to the drawings, the opposite longitudinal side walls 2 of the hopper are preferably disposed vertically, w1thout 1nward ofl'sets or slopes where they merge mto the bottom opening, and 3 are the oppositely sloping end sheets. The car body is preferably constructed without center sills, the longitudinal strains being carried by the side sills 4, leavin the interior of the hopper unobstructed. e ho per as here constructed is of maximum wi th or transverse clearance, the vertical side walls oifering no obstruction to the discharging lading.

For meeting the clearance conditions herein desired doors 5 are arranged to open toward the ends of the car, and I have adapted to this use balanced bodily movable doors of the general type described in Letters Patent No. 939,588 granted to me November 9, 1909. The doors are adapted to close together and are constructed with upwardly extending end portions 6 which form downward continuations of. side walls 2 when the doors are closed. Each door is adapted to rotate about an axis disposed transversely of the car, such axis being defined by spindles 7 of rollers 8 mounted on the opposite door ends, the outer ends of the spmdles being 'ournaled in the an lar door-end braces 9.

ollers 8 are sustained by and adapted to travel on tracks 10 secured to and extending longitudinally of the side sills 4, and the roller engaging face of each track is preferably curved as shown so that the roller lowers slightly as the door begins to open, and raises slightly as it approaches full open position, Fig, 1.

The doors are adapted to move beneath and behind the end slope sheets 3. In the adaptation here shown their movement is directed and controlled by the bell-crank levers 11 and 12, fulcrumed to the car sides at 11'and 12' respectively. Levers 11 have their downwar ly extending arms pivoted at 13 to the upper rear portion of one of the doors, while levers 12 are similarly connected at 13 to the other door. The upper arms of levers 11 and 12 at each side of the car are connected by the longitudinally adjustable bar or link 14, said crank arms being so disposed that the doors must open in unison and close in unison.

At one end of the car is the transverse operatin gshaft 15, journals therefor being provide in the upright brackets 16. Adacent each side of the car the shaft is provided with cranks 17 which are connected by bars or links 18 with the upper ends of levers 11 coincidentally with llIlkS or bars 14. -The outer extremities of links 18 are deflected vertically at 1-8' to extend across operating shaft 15 which place the cranks on or beneath dead centers for locking the doors in closed position. Turnbuckle 14 in bars 14 are utilized for adjusting. the doors relatively to each other, and turnbuckles 18" in bars 18 afford adjustment for the connections with the operating shaft. The several turnbuckles are also of service in taking up lost motion due to wear, etc.

Secured to shaft 15 is arm 19 carrying at its extremity the weighted handheld 20 for throwing shaft 15, the movement of the arm for closing the doors being limited by stop 21 at one side of one of the brackets 16, while a similar stop 21 at the opposite side of the bracket limits the movement when the doors are opening.

The dumping opening' of the hopper is materially wider than the space between the track rails so that the lading is discharged outside as well as between the rails, and the longitudinal dimension of the opening is as great or greater than lts transverse dimension. The position of the dumpmg opening relatively to the track is lower than has obtained heretofore with a relatively large opening, this being due to the employment of door mechanism of such form for an opening of the character described that the doors when open fully clear the track and trucks.

I claim 1. In a dump car, a hopper having each of its walls beneath its top chord disposed in a single plane, the lower ends of the walls defining a single unobstructed opening, and means for closing the opening. I

2. In a dump car, a hoppenhaving a smgle unobstructed bottom opening1 extendlng from side to side of the car, t e opposite side walls of the hopper being each disposed in a single plane'beneath its top chord and said walls defining the maximum width of the hopper, and a pair of doors movable bodily longitudinally of the car for controlling said opening.

3. In a dump car, a hopper having a smgle unobstructed bottom open1ng, the opposite side walls of the hopper terminatlng at said opening, and a pair of doors for the. opening with the doors constructed with upright end portions which when the doors are closed form downward continuations of the hopper sides. 4. In a dump car, a hopper having a single'unobstructed bottom opening, the opposite side walls of the hopper terminating at said opening with said walls defining the maximum width of the hopper, a pan of doors for the opening movable bodily longitudinally of the car. and inclined when closed, each door constructed with upright end portions which register with and form downward continuations of the ho per walls when the doors are in closed position.

5. The combination of a dump car having a bottomdischarge opening, the car having opposite side walls and downwardly converging end walls with said walls extending to and defining the discharge opening, each of said walls beneath its top chord disposed in a single plane, and a pair of doors adapted to close together with the doors movable bodily longitudinally of the car and beneath said sloping end walls.

6. The combination of a dump car having vertical side walls and downwardly converging end walls with each wall beneath its top chord disposed in a single plane and with said walls extending to and defining a single unobstructed discharge opening, and a pair of doors adapted to close together with the doors movable bodily longitudinally of the car and beneath said sloping end walls, the doors provided with upwardly extending ortions which form downward continuatlons of the side walls when the doors are closed.

7 The combination of a dump car having a bottom discharge opening with the op 0- site side walls of the car disposed vertica lly and terminating at such opening, a door for the opening adapted to open toward an end of the car, the door provided with upwardly extending end portions which constitute downward continuations of said vertical side walls when the door is closed, and door actuating means.

8. The combination of a dump car having a single unobstructed bottom dischar e opening extending outwardly beyond t e rails on which the car runs, and doors movable bodily longitudinally of the car and beneath the end of said openings;

9. The combination of a dump car having a single unobstructed bottom discharge opening extending outwardly beyond the rails on which the car runs with sloping floor sheets defining the ends of said opening, and doors movable bodily longitudinally of the car beneath and upwardly back of the sloping floor sheets.

10. The combination of a dump car having a single unobstructed bottom discharge opening extending outwardly beyond the rails on which the car runs, doors movable bodily longitudinally of the car and backwardly beneath the ends of said opening, and operating mechanism connected to the doors and extending to an end of the car.

11. In a dump car, a hopper having each of its side walls beneath its top chord disposed in a single plane, hopper end walls, the side and end walls terminating in an unobstructed discharge opening extending outwardly beyond the rails on which the car runs, and means for closing the opening.

12. In a dump car, a hopper having opposite side walls each dlsposed in a single plane beneath its top chord, hopper end In testimony whereof I afiix my signature walls, the side and end walls terminating in presence of two witnesses.

in a single unobstructed bottom opening extending outwardly beyond the rails on which CHARLES CLARK 5 the car runs, and a pair of doors movable Witnesses:

bodily longitudinally of the car for control- J. M. NEsBrr,

ling said opening. F. E. GAITHER.

Correction in Letters Patent No. 1,182,642.

It is hereby certified that in Letters Patent No. 1,182,642, granted May 9, 1916, upon the application of Charles H. Clark, of Crafton, Pennsylvania, for an improvev ment-in Dump-Cars, an error appears in the printed specification requiring correction as follows: Page 2, line 103, claim 8, for the words the end of said openings read the ends of said opening; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 20th day of June, A. D.', 1916.

J. T. NEWTON,

Acting aommiuimurqf P nts.

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